movePlayer(int spd)

void movePlayer(int spd)
{
     rX = pX;
     rY = pX;
     switch( pDir )
     {
             case 0:
                  rX += spd;
             break;
             case 1:
                  rX += spd;
                  rY -= spd;
             break;
             case 2:
                  rY -= spd;
             break;
             case 3:
                  rX -= spd;
                  rY -= spd;
             break;
             case 4:
                  rX -= spd;
             break;
             case 5:
                  rX -= spd;
                  rY += spd;
             break;
             case 6:
                  rY += spd;
             break;
             case 7:
                  rX += spd;
                  rY += spd;
             break;
     }
}